Yammer CEO David Sacks Interview   Getty Images
{"Image ImageDescription": "David Sacks, chairman and chief executive officer of Yammer Inc., speaks during a television interview in San Francisco, California, U.S., on Wednesday, March 14, 2012. Sacks discussed Yahoo! Inc.'s patent infringement lawsuit against Facebook Inc. Photographer: David Paul Morris/Bloomberg via Getty Images", "Image Copyright": "2012 Bloomberg"}